Container for asphalt



Au 28, 1956 G. F. THAGARD, JR

CONTAINER FOR ASPHALT Filed May 17, 1952 Smaentor GEORGE E 72/464219,Jej

(Ittorne'g United States Patent CONTAINER FOR ASPHALT George F. Thagard,Jr., South Gate, Calif.

Application May 17, 1952, Serial No. 288,375

1 Claim. (Cl. 206-56) This invention relates to a container for asphalt.

The provision and transportation of asphalt to the site where the sameis applied present difficulties that entail wastage of labor,cumbersomeness of handling, and increased costs of labor. The foregoingcan, in a large measure, be eased or reduced by providing asphalt inpackages or units capable of easy handling. The present invention ismore particularly concerned with asphalt such as used for roofingpurposes and is known as steamblown or oxidized roofing asphalt. Forsuch use, the provision of handleable units of asphalt such as hereincontemplated affords the advantages above-mentioned. Accordingly, it isan object of the present invention to provide a container for asphalt ofsuch form that a handleable unit of such material is enclosed thereinand available to the user without waste and, moreover, is easily andeconomically handled.

Another object of the invention is to provide an inexpensive discardablecontainer of the character indicated, that is adapted to be quicklypeeled away from its solid asphalt contents.

The invention also has for its objects to provide such means that arepositive in operation, convenient in use, easily installed in a workingposition and easily disconnected therefrom, economical of manufacture,relatively simple, and of general superiority and serviceability.

The invention also comprises novel details of construction and novelcombinations and arrangements of parts, which will more fully appear inthe course of the following description. However, the drawing merelyshows and the following description merely describes preferredembodiments of the present invention, which are given by way ofillustration or example only.

In the drawing like reference characters designate similar parts in theseveral views.

Fig. l is a side elevational view of a packaged unit of asphaltaccording to the present invention, the container thereof being brokenaway in part.

Fig. 2 is a top plan view thereof.

Fig. 3 is a fragmentary inner face view of said container.

Figs. 4 and 5 are fragmentary plan views of modifications.

The present container for asphalt comprises, generally, a sheet ofcorrugated or comparable heavy or thick paper 5 adapted to be formed asan elongated tube 6, a line of breakaway stitching 7 to separablyconnect the lateral edges of sheet 5 when so formed, a bottom 8, alsocomprising corrugated paper and afiixed to the tube 6 as by a line ofstitching 9, and a coating 10 on the inner face of both sheet 5 andbottom 8 to obviate adhering of said paper and bottom to the cylinder ofasphalt 11 in tube 6. In the forms of Figs. 1, 2 and 4, the lateraledges of sheet 5 are shown as abutted by providing outturned flanges 12on said lateral edges. In Figs. 1 and 2, the line of stitching 7 isapplied through the abutted flanges. In this manner, the cylindricalpackage is provided with ice means preventing rolling. Tube 6 is made upbefore bottom 8 is stitched in place. As seen at the bottom of Fig. 1,the flanges 12 are flattened against the tube and line of stitching 9passed therethrough. Thus, possible leakage at the lower corner isobviated.

A conventional chain stitch, that readily unravels when the end 13thereof is pulled, comprises stitching 7. Thus, it is a simple matter todisconnect flanges 12 when the container is to be removed from theasphalt cylinder therein by a pull on end 13.

The coating 10 is preferably sprayed on and may comprise a suitablenon-adhering material or composition of which bentonite and talc,together or singly, are examples. By providing such a coating on theinner faces of the container, the same is readily peeled away whenstitching 7 is removed.

The asphalt 11 is in a heated liquefied or pourable form when introducedinto the made-up container and, therfore, may have a tendency to seepthrough the stitching 7 before it can set to form-retaining hardness. Toobviate such seepage, a strip 14 of suitable paper or fabric may bepasted to the inner face of sheet 5 adjacent to one lateral edge thereofsubstantially as shown in Fig. 3. Said strip constitutes a barrieracross the seam formed by flanges 12 as seen in Fig. 2, and is providedwith the same coating as is applied to sheet 5.

The line of breakaway stitching 7 may be replaced by equivalent meansthat will separate flanges 12 and enable removal of tube 6 from thecylinder of asphalt 11. For instance, as shown in Fig. 4, said flanges12 may be lightly glued or cemented together as at 15 with a pull stringor wire 16 on the inward side of said flanges. Thus, an outward orforward pull on one end of the string or Wire will break the cement andseparate said flanges. A suitable number of staples 17 connectingflanges 12 may replace the cement. As shown in Fig. 5, said staples 17connect the lateral edges of sheet 5 which are shown in overlappingarrangement instead of outturned as before. It will be realized thatsaid staples may be replaced by stitching 7 or by glue 15, as desired.

By making up the above-described unit in a size to enable easy handling.by one man, asphalt is made readily available for heating toliquefaction on the job in an economical and facile manner and it willbe evident that the object of the invention are realized in thecontainer disclosed.

While the invention that has been illustrated and described is nowregarded as the preferred embodiments, the construction is, of course,subject to modification without departing from the spirit and scope ofthe invention. It is, therefore, not desired to restrict the inventionto the particular form of construction illustrated and described, but tocover all modifications that may fall within the scope of the appendedclaim.

Having thus described the invention, What is claimed and desired to besecured by Letters Patent is:

A container comprising a cylindrical tube of corrugated paper, asphaltfilling said tube and initially poured thereinto, said asphalt-filledtube being ordinarily adapted to roll, the longitudinal edges of saidpaper comprising outturned flanges in face-to-face relation to form alongitudinal roll-arresting radial projection on a cylindrical surfaceof the tube, a line of breakaway stitching perforating the radialprojection and connecting the flanges, a longitudinal sealing stripdisposed on the inner side of the tube along the line where theoutturned flanges join to cover the seam thus formed and seal the sameagainst asphalt within the tube reaching the perforations formed by theline of stitching, thereby obviating seepage from the interior of thecontainer, a bottom closure within the tube to hold asphalt while in apouring state, said closure including a peripheral flange in contactwith the inner face of the paper tube, and a circular line of stitchingconnecting said latter flange and the corrugated tube to secure theclosure to the tube, the adjacent end of the radial projection beingbent to a flattened position against an adjacent portion of the tube andsaid circular line of stitching passing through said bent part to sealthe container where the bottom closure and the seam between the flangesmeet.

References Cited in the file of this patent UNITED STATES PATENTS Re.18,799 Lichtig Apr. 18, 1933 727,786 Grace May 12, 1903 809,050 GoldmannJan. 2, 1906 4 Bolger Mar. 17, Dever Mar. 20, Soutter Aug. 14,Schlumhohm Dec. 21, McPherson May 17, Lakso Oct. 31, Walters Aug. 26,Nichols Jan. 20, Stuart et a1. June 5, Stoll Oct. 13,

FOREIGN PATENTS Great Britain Apr. 2, Great Britain Nov. 30, GreatBritain Nov. 1,

